List two things you know about the natural world. then identify how you know these things are true.
example: fire is hot
how i know: i once burned my hand on the stove fire and it was very hot.
Trees have knots in wood and thia makes it harder to cut and I know this because I know someone who cuts wood. Water is necessary for humans and I know this because I feel much less thirsty when I drink it when I am thirsty.
